Sentry-php: `handleFatalError` will catch any type of error, which results in duplicate Sentry entries

[timmipetit]

The function handleFatalError will currently catch all error that handleError will catch as well. For example: we have Sentry configured to catch warnings as well. When the last error on a page is a warning, it will be caught by handleError and finally by handleFatalError in the shutdown function. This means we get 2 entries in Sentry.

I think there are 2 possible solutions for this:

1. Only catch fatal errors in handleFatalError, as the name implies
2. Check if error_get_last() has already been reported by handleError

[dcramer]

This is resolved now